Arc Machines manufactures two weld heads for automatic orbital fusion or wire-feed (GTAW, TIG) tube to tubesheet welding.  Tube sizes from 3/8” (9,5 mm) ID through 2.0” (50,8 mm) OD can be welded using our Model 96 for fusion applications and tube sizes from 3/8” OD through 4.5” (114 mm) OD can be welded with filler wire using our Model 6 weld head. Tube configurations can be flush, recessed or projected above the tubesheet. Both of these heads attach firmly to the tubesheet, so x-ray quality welds on all TIG weldable materials can be produced in any position.

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A Guide to Codes and Standards

Coffee Processing Plant Uses AMI Equipment -
2,600 Welds - No Weld Rejects

Model 9
 Re-Tubing of Heat-Exchangers at Texaco’s Refinery 
Model 6
 Orbital Welding in Record Time
Model 6

Tube-to-tubesheet welds increased by 80% per shiftModel 227Model 6